angularjs-vs-angular-the-key-differences-between-javascript-and-typescript
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AngularJS vs. Angular: The Key 
Probe into the Key Components an
Differences  between JavaScript and d  Tools of DevOps Lifecycle.
TypeScript.
Table of Contents One distinction that JavaScript developers should be aware of is the difference between AngularJS 
 and Angular. This is because most of them, particularly newcomers, are perplexed as to how  
dissimilar these two frameworks are.
1.AngularJS:
Angular vs. AngularJS has been a major topic for quite some time and will most likely continue to 
2. Angular:
be  for many years to come. While both frameworks were created by Google, there are numerous 
3. AngularJS vs Angular Comp…  differences between them. The primary distinction between AngularJS and Angular is that  
4. How to Migrate f rom Angula… AngularJS is built with JavaScript, whereas Angular is built with TypeScript. There are significant  
similarities between these two open-source front-end frameworks for creating dynamic web  
5. AngularJS to Angular Migrat…
applications and SPAs. Let’s have a look at their differences as well.
Through this blog you will get to know more about Angular and AngularJS framework and also the 
 major differences between them.
Subscribe To Get Latest Updates Let’s define AngularJS and Angular frameworks and its features:
Email
AngularJS:
Subscrib Google published its first version in 2010 as a JavaScript-based front-end framework designed  
e specifically for constructing single-page applications. Model-View-Controller (MVC) Architecture  
underpins AngularJS. It is a framework that is always growing and extending to provide better  
methods for constructing online apps.
AngularJS framework primarily transforms static HTML into dynamic HTML. Its capabilities like  
dynamic binding and dependency injection minimize the need for code that would otherwise be  
written. Because the framework is continually evolving, we have multiple versions of AngularJS, the 
 most recent stable being 1.7.9. It’s also worth noting that Angular is not the same as AngularJS.  
However, it is an open-source project that anyone can use and modify. It also extends HTML  
attributes with Directives and uses HTML to bind data.
Features of AngularJS:
AngularJS framework has a plethora of capabilities that aid in the development of effective  
applications. Some of the features are as follows:
1. MVC: An architecture is essentially a sohware pattern that is utilized to create an application. It  
mostly comprises of the following elements:
Model: This component consists of a database and is in charge of managing the application’s  
data and logic. It updates itself in response to requests from the View component and 
instructions  from the Controller component.
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View: This component is in charge of displaying application data to users. The View is the 
user
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Controller: This component is in charge of communicating and interacting between the 
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aids in data
2.Data Model Binding: In AngularJS, data binding is a two-way operation, which means that the  
view layer of the MVC architecture is an exact copy of the model layer. To connect data to HTML  
controls, you do not need to create any extra code. Normally, in previous MVC structures, we must 
 constantly update the display layer and the model layer to keep them in sync. The model layer 
and  the view layer in AngularJS are said to be synced with one other. When the data in the model 
 changes, the view layer updates, and vice versa. It happens instantly and automatically, which 
helps  to ensure that the model and view are always up to date.
3.Templates: The biggest benefit of utilizing AngularJS is how it uses templates. Normally, the  
browser passes the templates into DOM, which then becomes the input of the AngularJS compiler, 
 and AngularJS explores the DOM template for rendering instructions known as directives.  
AngularJS’s siblings work differently because they employ the HTML String, whereas AngularJS  
does not change the template strings. Using the DOM allows us to extend the directive vocabulary 
 or even abstract it into reusable components.
4.Unit testing is complete: Google’s designer was concerned not only with developing Angular  
but also with developing a testing framework called “Karma” that aids in the design of unit tests for  
AngularJS apps.
5.Extensibility and integration: AngularJS is easily integrated with other libraries and frameworks.  
It allows you to interface with server-side APIs, process HTTP requests, and integrate with third-  
party utilities. You may also extend the functionality of AngularJS by writing custom directives, 
filters,  and services, allowing you the freedom to customize the framework to your specific 
requirements.
Angular:
Another open-source framework that is absolutely free to use. While Angular is a JS-based  
framework, TypeScript is its core programming language. Google created Angular, and TypeScript 
is  a superset of JavaScript, which essentially means that TypeScript has all the capabilities of JS 
plus  some extra features. Angular is generally used to create fully featured web applications.
A well-known framework is an excellent choice for developing strong web apps with a modern  
design and highly dynamic behavior. Because Angular is modular, you may break the entire  
application into discrete portions (called modules) that represent a certain functionality. Angular  
allows you to easily create high-performance web applications while adhering to the MVC paradigm 
 and providing two-way data binding.
Features of Angular:
Some of Angular’s most notable features are listed below.
l .  Use of TypeScript: AngularJS employs JavaScript, however Angular (2 and later versions) 
uses  Typescript during development. Typescript provides static typing, which decreases 
the  runtime issues that AngularJS was causing when developing large apps.
6. Faster than AngularJS: Angular is at least 7 times faster than AngularJS due to its superior  
architecture and data binding technique. It does not generate HTML and then wait for the  
browser to parse it; instead, it directly creates DOM data structures. It also has the  
characteristic of lazy loading, which means that only the components that are rendered are  
needed, making the total program faster.
7. Component-based Architecture: Angular employs a component-based architecture, in which 
 directives are used like components. Angular provides reusable, simple-to-use, and  
maintainable components that are also self-contained.
8. Angular includes a Command Line Interface (CLI): which allows for easy access to testing  
methods and application maintenance from a command shell.
9. Data Binding: AngularJS performs data binding using the NG directive approach, which  
requires a developer to remember the exact expression of the NG directive, whereas 
Angular  () is used for event binding and [] also for property binding.
10.Mobile App Development: Another popular feature of Angular is the ability to design mobile  
apps with the help of Angular.
AngularJS vs Angular Comparison:
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The AngularJS vs Angular comparison table below briefs about the difference between  
AngularJS and Angular frameworks.
Parameter Angular AngularJS
Supported  Although Angular supports both  It only supports JavaScript.
Languages JavaScript and TypeScript, it 
 prefers the latter for the 
following  reasons:
Observations
The use of static typing
Mobile Angular applications are AngularJS-based applications 
Development mobile-  friendly, which is are not  mobile-friendly.
 Support one of its  distinguishing 
features. Angular  applications, 
in other words, are  fully 
optimized for mobile
browsers.
Architecture Angular’s architecture is AngularJS supports the MVC and 
 Support mostly  built on MVVM  architectures, where MVC 
Components. stands for  Model-View-Controller 
Its Components are also a and MVVM  stands for Model-View-
mix of  directives and ViewModel.
templates.
One or more Angular The Model stores and processes 
Components are used in data,  while the View displays it 
every  Angular to
application. consumers.
The Controller is also in 
charge of  connecting the 
Model and View so  that users 
may interact with the
program seamlessly.
ViewModel is a value converter, 
which  means it converts model 
data items to  make them easier 
to present and  manage.
Performance The data binding AngularJS also includes two-way  
 and Speed functionality of  Angular binding, which makes it easier to 
applications contributes  create  dynamic web pages. As a 
significantly to their great result,  AngularJS applications 
performance. Data binding  perform  admirably.
enables real-time website The overall performance of 
content  updates without the AngularJS  applications, however, falls 
need for  extensive coding. short of what  is anticipated of modern 
Furthermore, Angular supports applications.
 server-side rendering, 
which  allows Angular 
applications to  load 
quickly.
Ease of  Angular specifies a correct  There is no need to adhere to a 
Managing  framework that you must specific  structure when using 
Projects adhere  to when designing AngularJS. As a  result, AngularJS 
an application, projects are challenging
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making projects produced with it to manage, 
particularly when they are
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Injection Angular employs hierarchical AngularJS. Instead, it employs
Dependency To improve application speed, Dependency 
dinejpecetniodne nisc yn oint juescetido nin. commands.
Routing Angular allows you to route  AngularJS also allows to define 
between several views  routing  information. To define 
(templates). To access the routing
client’s  view, it uses a URL information in AngularJS, 
that looks like  a directive. simply use  
To define routing @routeProvider.when().
information in  an Angular 
app, use @Route  
Config{(…)}.
Data Binding Two-way binding is Two-way binding is also supported 
supported by  Angular. It by  AngularJS. However, for one-
lets you use () or [] to  bind way  binding, it employs the ng-
data between the view and  bind directive  and the ng-model 
the model. directive for two-way  binding.
CLI The framework includes AngularJS does not include a 
the  AngularCLI command- command-  line interface.
line tool,  which allows you 
to build and  manage 
components and other  
project files from the 
command  line.
Testing It assists unit tests with Unit tests, which you can build 
Karma, a  JavaScript test while  developing the application, 
runner. can also be  used to test 
Furthermore, the Angular AngularJS code. AngularJS,  on 
CLI  simplifies app the other hand, depends on third-  
development and  hence party tools to create and test apps
enables easy testing. thoroughly.
SEO Support Angular provides the pieces  AngularJS does not provide any 
required to make web apps efficient  methods for making 
easily  crawlable by search applications SEO-  friendly.
engines.
Application Gmail, Upwork, JetBlue, Netflix, Lego, IStock, and 
 Examples and  Wikiwand. AngularJS  official website.
How to Migrate from AngularJS to Angular?
In the preceding paragraphs, we learned about the characteristics and how AngularJS and Angular  
differ from one another. In this section, we will learn about migrating from AngularJS to 
Angular  in the steps listed below:
Step 1: Get started by installing TypeScript and the @types/angular package. Then, make the  
language interoperable with the previous JavaScript code by using the TS Compiler and a TS  
module integration.
Step 2: Using Angular CLI, create a new build of the old AngularJS app. Some developers use  
Webpack directly instead, but this is time-consuming in our experience, especially because 
CLI
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supports Webpack internally. Copy the AngularJS files to a new Angular folder.
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time. Using defaEult function argumYents will aid in backward compatibilityR Mand code optimization. 
This  renders the migration process opaque to users while also making it more convenient for 
tShtee pcl i4en: tT.ransfer component APIs and services. You can use the downgrade components to make 
 the newer portions available within the project’s AngularJS section. While migrating the AngularJS  
component to the new version of the app, you may need to change some code. Refactoring and  
adapting the AngularJS module configuration files to comply with the revised folder structure and  
Angular configuration requirements is a critical step.
Step 5: The final stage is routing, which is frequently implemented with UI-Router. This is 
supported  by ngUpgrade by default, and UI-Router includes smooth hybrid migration support.
Step 6: Because the JS and Angular template syntaxes differ, compile-time issues may occur, so  
test the app aher the migration. Examine whether all components of the solution are compatible  
with the new Angular architecture.
AngularJS to Angular Migration Tools:
The tools described below are a few popular AngularJS and Angular migration tools, namely UI  
Router, Angular CLI Builders, ngMigration Assistant and ngUpgrade. Let’s read about each tool  
below:
UI Router: It is a router that coders can use to create a client-side route for SPAs (Single Page  
Apps). The key advantage of this router is that its core is framework independent. It is compatible 
 with Google’s framework versions 1 and 2+.
Angular CLI Builders: Programmers can use them to set up complex development processes,  
execute services, or generate a webpack faster. Builders, in fact, provide several useful  
capabilities that make the AngularJS to Angular transfer easier. This type of instrument is utilized in 
 conjunction with the API Architect.
ngMigration Assistant: This tool functions more like a guide, assisting you in determining the  
optimal migration options. In general, the goal of this aid is to examine the data on which the  
instrument recommends making the AngularJS transfer to Angular. Even if ngMigration does not  
always operate completely, it alleviates the agony of selecting on a single upgrade path for  
organizations in many cases.
ngUpgrade: When it comes to platform upgrades, this is the most useful tool. ngUpgrade is the  
official library for upgrading large and small applications. Its major task is to smoothly combine 
TS-  and JS-based framework components. This tool is set up so that developers can convert  
AngularJS-based source code to TypeScript-based code.
One of the most prominent comparisons that JavaScript developers look for is Angular vs.  
AngularJS. While both are sophisticated JavaScript frameworks produced by Google, there are  
some significant distinctions that you should be aware of before selecting one of them for  
constructing a project.
To summarize everything, remember that Angular is the successor of AngularJS and provides  
improved performance and functionality. While AngularJS is continuously updated with new  
advancements, it just cannot compete with Angular’s contemporary features. So, in our humble  
opinion, Angular is superior to AngularJS, particularly if you want to construct modern web 
apps  with expanded functionalities.
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